Open YouTube Studio
Go to studio.youtube.com and sign in to the channel that owns the video.
How-to · Updated September 19, 2026
Tags are available in YouTube Studio's advanced video details. You can add them during upload or edit them on a published video, but YouTube says they play only a minimal role in discovery outside common misspellings.
For an uploaded video
Go to studio.youtube.com and sign in to the channel that owns the video.
Select Content in the left menu, then choose the uploaded video you want to edit.
On the video details page, select Show more to reveal the Tags field.
Enter accurate topic terms, proper names, acronyms, or common misspellings that genuinely describe the video. Commas separate tags.
Select Save. You can return to the same details page to change or remove tags later.
During a new upload
Select Create → Upload video, choose the file, then open More options in the Details section. Add the tags there before you finish the upload flow.
What to enter
Spend optimization time on the title, thumbnail, and description first. YouTube explicitly names those as more important discovery metadata.
The free YouTube tag generator can produce a draft set from your topic. Review every result and remove anything the video does not actually cover. New to tags? Start with what YouTube tags are.
Primary sources
For an uploaded video, use YouTube Studio → Content → select the video → Show more → Tags. During a new upload, open More options in the Details section.
Yes. YouTube's official instructions allow you to open an uploaded video in Studio, add or edit tags, and save the details without uploading the video again.
YouTube says titles, thumbnails, and descriptions are more important for discovery. Tags can help when a topic is commonly misspelled, but otherwise play a minimal role.
The YouTube Data API documents a 500-character maximum for the complete tag list, including separators and extra counting rules for tags with spaces. Relevance matters more than filling the field.